Home / 2,158,675,049.85-2,978,916,741.25-1,206,063,120.75

Finding the Fourth Proportional to 2,158,675,049.85, 2,978,916,741.25 and 1,206,063,120.75

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Solution

The fourth proportional to 2,158,675,049.85, 2,978,916,741.25 and 1,206,063,120.75 is: 1,664,336,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,675,049.85 : 2,978,916,741.25 = 1,206,063,120.75 : x
  2. Step 2: Convert to fraction form
    2,158,675,049.85/2,978,916,741.25 = 1,206,063,120.75/x
  3. Step 3: Cross multiply
    2,158,675,049.85x = 2,978,916,741.25 × 1,206,063,120.75
  4. Step 4: Simplify right side
    2,158,675,049.85x = 3,592,761,621,406,395,392
  5. Step 5: Solve for x
    x = 3,592,761,621,406,395,392/2,158,675,049.85
  6. Step 6: Final answer
    x = 1,664,336,474.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.